FI111973B - Roll for coating machine - Google Patents

Roll for coating machine Download PDF

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Publication number
FI111973B
FI111973B FI980200A FI980200A FI111973B FI 111973 B FI111973 B FI 111973B FI 980200 A FI980200 A FI 980200A FI 980200 A FI980200 A FI 980200A FI 111973 B FI111973 B FI 111973B
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FI
Finland
Prior art keywords
roll
roll according
fiber composite
core
changes
Prior art date
Application number
FI980200A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI980200A (en
FI980200A0 (en
Inventor
Martin Kustermann
Original Assignee
Voith Sulzer Papiermasch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Voith Sulzer Papiermasch Gmbh filed Critical Voith Sulzer Papiermasch Gmbh
Publication of FI980200A0 publication Critical patent/FI980200A0/en
Publication of FI980200A publication Critical patent/FI980200A/en
Application granted granted Critical
Publication of FI111973B publication Critical patent/FI111973B/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0808—Details thereof, e.g. surface characteristics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Paper (AREA)

Description

111973111973

Valssi päällystyslaitetta varten - Vals för en beläggningsanordningRoller for coating machine - Vals för en beläggningsanordning

Esillä olevan keksinnön kohteena on päällystyslaitteita varten tarkoitettu valssi vä-5 liaineen levittämiseksi juoksevalle tavararadalle, erityisesti paperi- tai kartonkirai-nalle patenttivaatimuksen 1 johdannon mukaisesti.The present invention relates to a roll for coating equipment for applying a medium to a running web, in particular to a paper or board web, as claimed in the preamble of claim 1.

Vastaavanlainen valssi tunnetaan esimerkiksi saksalaisesta patenttijulkaisusta DE 40 22 334 C2. Julkaisussa kuvataan menetelmää päällystyslaitteen käyttämiseksi, ja 10 siihen sisältyy myös päällystysvalssi, joka sisältää polyuretaanivaipalla päällystetyn metalliytimen.A similar roller is known, for example, from German Patent Publication DE 40 22 334 C2. The disclosure describes a method of operating a coating device, and also includes a coating roll containing a metal core coated with a polyurethane sheath.

Käyttömallista DE 296 09 007 U1 tunnetaan painokoneita varten tarkoitettu valssi, joka samoin sisältää kantavana elementtinä metallisen ytimen ja johon kuuluu kui-15 tuyhdistemateriaalista valmistettu vaippa.From the operating model DE 296 09 007 U1, a roller for printing presses is known, which also includes a metal core as a supporting element and includes a jacket made of dry-15 compound material.

Tällaiset valssit ovat raskaasta metalliytimestä koostuvan raskaan rakenteensa vuoksi massaltaan erittäin hitaita, minkä vuoksi ne tarvitsevat lyhyiden käynnis-tysaikojen saavuttamiseksi suuria käyttömoottoreita ja myös raskaita liike-element-20 tejä. Tämän lisäksi valssiydinten tai vastaavasti käytettyjen metalliputkien (esim. suljettujen ontelokohtien aiheuttama) epäsymmetrinen rakenne tai valmistuksessa sattuneet epätarkkuudet saavat valssissa aikaan tasapainotuksen avulla vaikeasti I · » .·*·. hallittavissa olevan valssin levottoman liikkeen, mikä erityisesti korkeaa laatua : vaadittaessa on havaittavissa konesuunnassa esiintyvänä epätasaisena pinta- 25 profiilina.Because of their heavy metal core heavy structure, such rollers are extremely slow in mass and therefore require large drive motors and also heavy movement elements to achieve short start-up times. In addition, the asymmetric structure of the roll cores or correspondingly used metal tubes (e.g. due to closed cavities) or manufacturing inaccuracies make it difficult to achieve I · »in the roll by balancing. unrestrained movement of the controllable drum, which is particularly high quality: when required, it can be observed as an uneven surface profile in the machine direction.

Nykyisille valssirakenteille riittävät painolaadut ovat Q=l,6 ja Q=1,0 pyörimis-’ ·' ‘ tarkkuuksien ollessa enintään 50 pm silloin, kun ryhdytään erityistoimenpiteisiin.For existing roller structures, sufficient printing qualities are Q = 1.6, and Q = 1.0, with rotation accuracy of up to 50 µm when special measures are taken.

I · •. ·. · 30 Esillä olevan keksinnön kohteena on tuottaa päällystyslaitetta varten valssi, jonka « * · v : käynnin tasaisuutta on parannettu aiemmin tunnettuihin valsseihin verrattuna.I · •. ·. It is an object of the present invention to provide a coil for a coating apparatus having an improved uniformity of travel of * v in comparison to previously known rolls.

, ·.. ’ Mainittu kohde saavutetaan patenttivaatimuksen 1 tunnusmerkkien mukaisesti.Said object is achieved in accordance with the features of claim 1.

: 35 Mainittujen tunnusmerkkien mukaisesti keksijä on havainnut, että on suositeltavaa :, ‘ · j tehdä valssin ydin kuituyhdistemateriaalista, esimerkiksi lasikuituyhdistemuovia tai hiilikuituyhdistemuovia.: 35 In accordance with the foregoing features, the inventor has found it advisable to:, · · j make a core of a fiber composite material, for example glass fiber composite or carbon fiber composite.

2 1119732, 111973

Mainittu valssin rakenne vähentää suositeltavasti oleellisesti valssin painoa ja pienentää siten myös epätasapainovoimia. Näin voidaan jopa samojen painolaatujen kohdalla saavuttaa yli 1800 m/min. olevat kehänopeudet ja yli 8 m olevat valssile-veydet.Preferably, said roller structure substantially reduces the weight of the roller and thus also reduces unbalance forces. This way, even with the same printing qualities, over 1800 m / min can be achieved. circumferential velocities and roll widths exceeding 8 m.

55

Lisäksi kuituyhdistemateriaalin parempi paino-vakavuussuhde vähentää oleellisesti valssin ominaispainosta ja/tai lämpötilan vaikutuksista riippuvaista taipumista. Tämän lisäksi mainitun kaltaisen valssin taipumus omavärähtelyyn on pienemmän massan ja kuituyhdistemateriaalin parempien vaimennusominaisuuksien johdosta 10 oleellisesti pienempi kuin metalliytimellisen valssin. Edellä mainitut edut saavat yhdessä aikaan oleellisesti paremman ja tasaisemman pintaprofiilin.In addition, the improved weight-to-weight ratio of the fiber compound material substantially reduces the deflection depending on the specific weight of the roll and / or the effects of temperature. Further, the tendency of such a roller to self-oscillate is substantially lower than that of a metal core roller due to its lower mass and better damping properties of the fiber compound material. The above advantages together provide a substantially better and more even surface profile.

Vähäisen painon etuna on myös se, että kiinnitysrakenteet ovat kevyempiä ja edullisempia ja että myös käyttöyksiköt ovat mitoitettavissa pienemmiksi ja/tai nope-15 ämmät käynnistysajat ovat saavutettavissa.Low weight also has the advantage that the mounting structures are lighter and more economical, and that the drive units are also dimensioned smaller and / or faster start times are achieved.

Lisäksi mainitun materiaalin käyttö mahdollistaa valssin rakentamisen sellaiseksi, että ympäristön lämpötilalla ei ole vaikutusta valssin halkaisijaan tai että lämpötilan vaikutus on ainoastaan erittäin pieni. Erityisesti nk. "terminen pullistuminen" eli 20 valssin laajeneminen päistä keskustaa kohti voidaan välttää. Näin on myös mahdollista jättää pois tekniikan tämänhetkisessä tilassa tavallinen valssin jäähdyt-täminen.In addition, the use of said material allows the roller to be constructed in such a way that the diameter of the roller is not affected by the ambient temperature or that the effect of the temperature is only very small. In particular, the so-called "thermal bulge", i.e. the expansion of 20 rolls from the ends towards the center, can be avoided. It is also possible to exclude, in the present state of the art, conventional cooling of the roll.

* · · . ·. : Edellä kuvatut valssit voidaan kulloisenkin päällystyskoneella olevan käyttöalueen ,···. 25 mukaisesti valmistaa levitysvalssiksi, vastavalssiksi, irrotinvalssiksi tai speedsizer- tyyppiseksi valssiksi käyttämällä erilaisia suojuksia tai ne voidaan täysin valmistaa « « ♦ _ !.; kuituyhdistemateriaalista. Tehtäessä suojus kumista tai muovista on tunnettuun to- ·’ teutusmuotoon verrattuna etuna se, että kumi tai polyuretaani tarttuu suojukseen metallia paremmin siten, että vaipan irtoaminen ytimestä on harvinaisempaa kuin v 30 tekniikan tämänhetkisen tilan mukaisten laitteiden kohdalla.* · ·. ·. A: The rollers described above can be used in the application area of the respective coating machine, ···. 25, can be made into a spreading roll, a counter roll, a release roller or a speedsizer type roller using different shields or they can be completely fabricated. fiber composite material. An advantage of making the sheath of rubber or plastic is that, compared to the known embodiment, the rubber or polyurethane adheres to the shield better than metal, so that the release of the sheath from the core is less frequent than with devices of the current state.

• · · . ·. : Esillä olevan keksinnön mukaisten valssien muita sovelluksia on kuvattu liitteenä ,···,’ olevissa patenttivaatimuksissa.• · ·. ·. Other applications of the rollers of the present invention are described in the appended claims, ···, '.

• I · : V 35 Esillä olevaa keksintöä kuvataan seuraavaksi yksityiskohtaisemmin viitaten liit-:‘ · teenä oleviin piirroksiin, joissa kuvio 1 kuvaa päällystyslaitetta varten tarkoitettua, esillä olevan keksinnön mukaista valssia.The present invention will now be described in more detail with reference to the accompanying drawings, in which Figure 1 illustrates a roller for the coating apparatus according to the present invention.

3 1119733, 111973

Kuviossa 1 on nähtävissä poikkileikkauksena keksinnön mukainen valssi päällystyslaitetta varten. Valssi koostuu keskisestä ontelotilasta 2, sitä ympäröivästä ytimestä 3, joka on tehty kuituyhdistemateriaalista, esimerkiksi hiilikuituyhdiste-muovista (CfK) tai lasikuituyhdistemuovista (GfK). Ydintä 3 ympäröi vaippa 1, 5 joka on esimerkiksi valmistettu kumista, polyuretaanista tai myös metallista (esim. kromikerros).Figure 1 is a cross-sectional view of a roller according to the invention for a coating apparatus. The roll consists of a central cavity 2, with a surrounding core 3 made of a fiber composite material, for example carbon fiber composite (CfK) or glass fiber composite (GfK). The core 3 is surrounded by a sheath 1, 5 made, for example, of rubber, polyurethane or also of metal (e.g. a layer of chromium).

Esillä olevan keksinnön mukaisesti valssin sivut voidaan varustaa metallivahvik-keilla, joihin tuet ja mahdollisesti myös käyttölaite kiinnittyvät.According to the present invention, the sides of the roll can be provided with metal reinforcements to which the supports and possibly also the drive device are attached.

1010

Ytimen valmistamiseksi kuituyhdistemateriaalista voi olla välttämätöntä varustaa ytimen keskiosa halutusta materiaalista valmistetulla ohuella lisäkannattimella, jonka pinnalle yhdistemuovi asetetaan tunnetun kelaustekniikan avulla. Kustakin valmistusmenetelmästä riippuen kannatin joko pysyy ytimeen 2 liittyneenä tai se 15 liuotetaan myöhemmin pois.In order to make the core from the fiber composite material, it may be necessary to provide the center of the core with a thin additional support made of the desired material on which the compound plastic is applied by a known winding technique. Depending on each manufacturing method, the bracket either remains attached to the core 2 or is subsequently dissolved.

Claims (12)

1. Päällystyslaitetta varten tarkoitettu valssi juoksevan tavararadan, erityisesti paperi- tai kartonkirainan, päällystämiseksi joko suoraan tai epäsuorasti nestemäisellä tai pastamaisella väliaineella, valssin sisältäessä ytimen (3) ja vaipan (1), tun- 5 nettu siitä, että valssin ydin (3) on pääasiassa valmistettu kuituyhdistemateriaalista.Roll for use in a coating apparatus for directly or indirectly coating a fluid web, in particular paper or board, with a liquid or paste medium, the roll having a core (3) and a sheath (1), characterized in that the core (3) is mainly made of fiber composite material. 2. Patenttivaatimuksen 1 mukainen valssi, tunnettu siitä, että vaippa (1) on tehty kumista ja/tai polyuretaanista.Roll according to Claim 1, characterized in that the sheath (1) is made of rubber and / or polyurethane. 3. Patenttivaatimuksen 1 mukainen valssi, tunnettu siitä, että vaippa (1) koostuu metallikerroksesta (esim. kromikerroksesta).Roll according to Claim 1, characterized in that the sheath (1) consists of a metal layer (e.g. a chrome layer). 4. Päällystyslaitetta varten tarkoitettu valssi juoksevan tavararadan, erityisesti paperi- tai kartonkirainan, päällystämiseksi joko suoraan tai epäsuorasti nestemäi- 15 sellä tai pastamaisella väliaineella, tunnettu siitä, että valssirunko koostuu olennaisesti kuituyhdistemateriaalista.4. Roll for use in a coating apparatus for directly or indirectly coating a fluid web, in particular a paper or board web, with a liquid or paste medium, characterized in that the roll body consists essentially of a fiber composite material. 4 1119734, 111973 5. Jonkin patenttivaatimuksen 1-4 mukainen valssi, tunnettu siitä, että valssin tukialue on varustettu metallivahvikkeilla. 20Roll according to one of Claims 1 to 4, characterized in that the roll support area is provided with metal reinforcements. 20 6. Jonkin patenttivaatimuksen 1-5 mukainen valssi, tunnettu siitä, että valssi on sisäosastaan tehty ontoksi pyörimisakseliaan pitkin.Roll according to one of Claims 1 to 5, characterized in that the inner roll is hollow along its axis of rotation. : 7. Jonkin patenttivaatimuksen 1-6 mukainen valssi, tunnettu siitä, että yhdis- ,: 25 tekuitumuovina käytetään lasikuituyhdistemuovia ja/tai hiilikuituyhdistemuovia.Roll according to one of Claims 1 to 6, characterized in that the composite fibrous plastic material is glass fiber composite and / or carbon fiber composite. ; ; 8. Jonkin patenttivaatimuksen 1-7 mukainen valssi, tunnettu siitä, että ydin (3) on muodostettu kannattimen ympärille. » · ·; ; Roll according to one of Claims 1 to 7, characterized in that the core (3) is formed around a support. »· · 9. Jonkin patenttivaatimuksen 1-8 mukainen valssi, tunnettu siitä, että kuitu- yhdistemateriaali on päällystetty siten, että lämpötilan muutokset aikaansaavat pää-•. i. · asiassa pituuden muutoksia mutta eivät halkaisijan muutoksia.Roll according to one of Claims 1 to 8, characterized in that the fiber compound material is coated in such a way that temperature changes cause the main. i. · In the case of length changes but not of diameter. . . 10. Jonkin patenttivaatimuksen 1-8 mukainen valssi, tunnettu siitä, että kuitu- » I * ,. ’ · t 35 yhdistemateriaali on päällystetty siten, että lämpötilan muutokset aikaansaavat pää-* » asiallisesti halkaisijan muutoksia mutta eivät pituuden muutoksia. 5 111973. . Roll according to one of Claims 1 to 8, characterized in that the fiber »I *,. The compound material 35 is coated so that changes in temperature produce substantially changes in diameter but not changes in length. 5, 111973 11. Jonkin patenttivaatimuksen 1-10 mukainen valssi, tunnettu siitä, että valssin painolaatu on Q < 1,0.Roll according to one of Claims 1 to 10, characterized in that the roll has a print quality of Q <1.0. 12. Jonkin patenttivaatimuksen 1-11 mukainen valssi, tunnettu siitä, että valssin 5 ollessa toiminnassa valssin keskiosan pyörimistarkkuus on < 50 pm.Roll according to one of Claims 1 to 11, characterized in that, when the roll 5 is in operation, the center of rotation of the roll is <50 µm.
FI980200A 1997-01-30 1998-01-29 Roll for coating machine FI111973B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29701547 1997-01-30
DE29701547U DE29701547U1 (en) 1997-01-30 1997-01-30 Roller for application device

Publications (3)

Publication Number Publication Date
FI980200A0 FI980200A0 (en) 1998-01-29
FI980200A FI980200A (en) 1998-07-31
FI111973B true FI111973B (en) 2003-10-15

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Application Number Title Priority Date Filing Date
FI980200A FI111973B (en) 1997-01-30 1998-01-29 Roll for coating machine

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US (2) US5967035A (en)
DE (1) DE29701547U1 (en)
FI (1) FI111973B (en)

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Publication number Publication date
US6202557B1 (en) 2001-03-20
US5967035A (en) 1999-10-19
DE29701547U1 (en) 1997-03-20
FI980200A (en) 1998-07-31
FI980200A0 (en) 1998-01-29

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